| Subject | English | Spanish |
| transp., polit. | at full engine load | a plena carga |
| mech.eng. | engine load | carga del motor |
| environ. | engine load conditions | condiciones de carga del motor |
| mech.eng. | load of the engine | carga del motor |
| transp., mil., grnd.forc., mech.eng. | no load engine speed | velocidad en vacío |
| transp., mil., grnd.forc., mech.eng. | no load engine speed | velocidad de ralentí |
| transp., mil., grnd.forc., mech.eng. | no load engine speed | régimen en vacío |
| mech.eng. | rated load of an engine | carga de régimen del motor |